CVE-2023-6683

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Source
https://cve.org/CVERecord?id=CVE-2023-6683
Import Source
https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2023-6683.json
JSON Data
https://api.test.osv.dev/v1/vulns/CVE-2023-6683
Downstream
Related
Published
2024-01-12T19:01:25.542Z
Modified
2026-05-28T04:09:22.366019680Z
Severity
  • 6.5 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
Summary
Qemu: vnc: null pointer dereference in qemu_clipboard_request()
Details

A flaw was found in the QEMU built-in VNC server while processing ClientCutText messages. The qemuclipboardrequest() function can be reached before vncservercuttextcaps() was called and had the chance to initialize the clipboard peer, leading to a NULL pointer dereference. This could allow a malicious authenticated VNC client to crash QEMU and trigger a denial of service.

Database specific 
{
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/6xxx/CVE-2023-6683.json",
    "cna_assigner": "redhat",
    "cwe_ids": [
        "CWE-476"
    ]
}
References

Affected packages

Git / github.com/qemu/qemu

Affected ranges

Type
GIT
Repo
https://github.com/qemu/qemu
Events
Introduced
f9baca549e44791be0dd98de15add3d8452a8af0
Fixed
11aa0b1ff115b86160c4d37e7c37e6a6b13b77ea
Database specific 
{
    "extracted_events": [
        {
            "introduced": "6.1.0"
        },
        {
            "fixed": "8.2.2"
        }
    ],
    "cpe": "cpe:2.3:a:qemu:qemu:*:*:*:*:*:*:*:*",
    "source": "CPE_RANGE"
}

Affected versions

v6.*
v6.1.0
v6.2.0
v6.2.0-rc0
v6.2.0-rc1
v6.2.0-rc3
v6.2.0-rc4
v7.*
v7.0.0
v7.0.0-rc0
v7.0.0-rc1
v7.0.0-rc2
v7.0.0-rc3
v7.0.0-rc4
v7.1.0
v7.1.0-rc0
v7.1.0-rc1
v7.1.0-rc2
v7.1.0-rc3
v7.1.0-rc4
v7.2.0
v7.2.0-rc0
v7.2.0-rc1
v7.2.0-rc2
v7.2.0-rc3
v7.2.0-rc4
v8.*
v8.0.0
v8.0.0-rc0
v8.0.0-rc1
v8.0.0-rc2
v8.0.0-rc3
v8.0.0-rc4
v8.1.0
v8.1.0-rc0
v8.1.0-rc1
v8.1.0-rc2
v8.1.0-rc3
v8.1.0-rc4
v8.2.0
v8.2.0-rc0
v8.2.0-rc1
v8.2.0-rc2
v8.2.0-rc3
v8.2.0-rc4
v8.2.1

Database specific

source 
"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2023-6683.json"

Git / gitlab.com/qemu-project/qemu

Affected ranges

Type
GIT
Repo
https://gitlab.com/qemu-project/qemu
Events
Introduced
f9baca549e44791be0dd98de15add3d8452a8af0
Fixed
11aa0b1ff115b86160c4d37e7c37e6a6b13b77ea
Database specific 
{
    "extracted_events": [
        {
            "introduced": "6.1.0"
        },
        {
            "fixed": "8.2.2"
        }
    ],
    "cpe": "cpe:2.3:a:qemu:qemu:*:*:*:*:*:*:*:*",
    "source": "CPE_RANGE"
}

Affected versions

v6.*
v6.1.0
v6.2.0
v6.2.0-rc0
v6.2.0-rc1
v6.2.0-rc3
v6.2.0-rc4
v7.*
v7.0.0
v7.0.0-rc0
v7.0.0-rc1
v7.0.0-rc2
v7.0.0-rc3
v7.0.0-rc4
v7.1.0
v7.1.0-rc0
v7.1.0-rc1
v7.1.0-rc2
v7.1.0-rc3
v7.1.0-rc4
v7.2.0
v7.2.0-rc0
v7.2.0-rc1
v7.2.0-rc2
v7.2.0-rc3
v7.2.0-rc4
v8.*
v8.0.0
v8.0.0-rc0
v8.0.0-rc1
v8.0.0-rc2
v8.0.0-rc3
v8.0.0-rc4
v8.1.0
v8.1.0-rc0
v8.1.0-rc1
v8.1.0-rc2
v8.1.0-rc3
v8.1.0-rc4
v8.2.0
v8.2.0-rc0
v8.2.0-rc1
v8.2.0-rc2
v8.2.0-rc3
v8.2.0-rc4
v8.2.1

Database specific

source 
"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2023-6683.json"